fastnnuffrt

vehicle:
2012 Camaro SS
231/242 cam
6l80e trans
3500 circle d stall
pacesetter longtubes
vvt,dod,afm delete

did all the mods last week and had it dyno tuned all good made 445/435.
yesterday the car started stuttering above 2500 rpmi
starts to sputter and A/F jumps around.
checked all grounds, installed new o2s, new plug wires, plugs have 250 miles on them have not changed them again yet.. its throwing a p219a code.
I just cant seem to put my finger on it. has any of yall had this problem or this code. any help or advice would be much appreciated,

99Bluz28

iTrader: (35)

Check the O2 wiring on bank 1(left bank) between the pcm and where the O2s plug in.

fastnnuffrt

Changed plugs again and gapped them at .028 instead of .035 and cars running without a hiccup

99Bluz28

iTrader: (35)

Good to hear it was something easy to fix and inexpensive!

handyandy496

iTrader: (9)

that's all.... why...did the gap make the dif ?

fastnnuffrt

Iv been around a few big boosted applications and had the problem with blowing spark out under boost. Obviously I'm not boosted but it acted exactly like that. I can't wrap my mind around why the gap made that difference but it did. I know a guy iv been talking too and he had the same issue in a n/a ls7 swap 5th gen also